A connector assembly is used to connect subassemblies such as parts of a knockdown or modular sofa or similar item of furniture. The furniture item can be an upholstered item in which the multiple components are stackable into a volume that is smaller than the assembled item of furniture for shipping. The connector assembly includes a keyhole slot on a frame member in one component and a male connector assembly on a frame member in the other assembly. The male connector includes a sleeve with a cylindrical shank and an adjacent enlarged or conical portion, and the sleeve, which may be plastic, is mounted the bolt. The narrow section of the keyhole slot has a beveled surface and as the sleeve progresses into the narrow section, engagement of the conical sleeve section with the beveled slot surface tightens the two members being attached.